A_v_Z_o
* file: A_v_Z_o.cir
* LTSpice netlist file
* Test bench for A_v and Z_o of a
* voltage-feedback operational amplifier
* Default settings:
*** measurement of A_v
*** +/-5V supply voltage
*** LT1677 operational amplifier
.param vs=1         ;change to vs=0 for measurement of Z_o
.param io=0         ;change to io=1 for measurement of Z_o
V1 0 1 0 AC {vs} 0
I2 0 3 0 AC {io} 0
I1 0 2 0            ;Adjust this value for zero DC output voltage
VP 4 0 5            ;Positive supply voltage
VN 0 5 5            ;Negative supply voltage
C1 2 0 1meg         ;Adjust this value if necessary
R1 3 2 1meg         ;Adjust this value if necessary
X1 1 2 4 5 3 LT1677 ;Device Under Test (DUT)
.include LTC.lib    ;Library file with the subcircuit of DUT
.ac dec 20 1 10meg  ;AC sweep over frequency range of interest 20 points/decade
.save v(3)          ;Save the output voltage
.end